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geological media
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  地质材料
     LABORATORY STUDIES OF RADIONUCLIDES MIGRATION Ⅱ. INVESTIGATION OF SORPTION OF RADIONUCLIDES ON GEOLOGICAL MEDIA USING MIXTURE OF FISSION PRODUCTS AS A TRACER
     放射性核素迁移的实验室研究——Ⅱ.用混合裂变产物溶液研究核素在地质材料上的吸附
短句来源
     STUDY FOR FLUID-SOLID-INTERACTION IN GEOLOGICAL MEDIA
     地质材料中的流-固耦合研究
短句来源
  地质介质
     The principal conclusion is that the studied geological media have sufficient protective nature to resist direct and strong leaching action of the solution.
     作出的主要结论是:所研究的地质介质具有足够的保护性质,以对抗地浸液的直接的、强烈的作用。
短句来源
     Field tracer migration test and laboratory simulation test are two commonly used methods to study radionuclide migration in geological media.
     现场示踪试验和环境模拟实验是核素在地质介质迁移研究中常用的两种方法。
短句来源
     Effect of retardation coefficient used in models of radionuclide migration in geological media on the calculated results of maximum concentration of calculated points at the lower reaches is discussed in this paper.
     本文讨论了核素在地质介质迁移研究中所用的延迟系数对下游计算点最大浓度计算结果的影响。
短句来源
     Retardation coefficient is one of the important parameters used in transport models describing radionuclide migration in geological media and usually regarded as a constant in the models.
     延迟系数是描述核素在地质介质中迁移的最重要的参数之一,而且通常都被当作常数使用。
短句来源
  “geological media”译为未确定词的双语例句
     On the three problems of shearing strength by conventional triaxial tests on geological media
     论常用三轴抗剪强度中的三个问题
短句来源
     It is one of the common methods to study water movement in geological media using 3H as tracer.
     用 3 H作为示踪剂研究水的运动是一种最常用的方法。
短句来源
     A tectonophysical method for estimating seismic energy and efficiency from the data on tectonic features, geological media, physical environment and driving background is established on the basis of a simplified elliptical hypocenter model, which considers strong constraint from hypocentral surroundings and uniformization of sliding resistance, and the calculation of hypocentral parameters.
     根据强约束匀阻化椭圆形震源简化模型及震源参数计算原理,建立了一种由构造、介质、物理环境和驱动背景等条件估计地震能量和地震效率的构造物理方法,并针对我国28例6级以上地震进行了初步的验算。
短句来源
     Based upon practical observation data, this paper deals with damage effects of deep rock openings under blast stress wave with diversified loads, layouts and geological media. The methods comprise synthetic analysis of in-situ test data, small-scale chemical explosion model experiment, and 3-D dynamic FEM analysis with a brittle failure material model.
     基于工程观测资料,采用现场试验数据综合分析、小比例化爆模拟实验和岩石脆性破坏模型的三维动力有限元数值模拟的方法,研究了深埋岩石洞室在爆炸应力波荷载作用下随着各种条件的变化而发生的破坏效应。
短句来源
     Conceptual models of present day, including equivalent continuum models, discrete fracture network models and hybrid models, use different techniques to predict flow and transport in fractured geological media.
     目前的概念模型,包括等效连续体模型、离散裂隙网络模型和混合模型使用了不同的技术来预测裂隙岩体中的渗流。
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  geological media
Mathematical apparatus for describing the structural levels of geological media
      
We develop a network model of fractures, and use the model to study transport of contaminants by groundwater through natural geological media.
      
The strong complexation of HSs is of importance in the migration of radionuclies in geological media.
      
Radionuclide transport studies in consolidated and unconsolidated geological media are being performed in the laboratory as part of the Canadian Nuclear Fuel Waste Management Program.
      
Our focus is on composite mediamodels that allow one to estimate uncertainties both in geometricalstructure of geological media consisting of various materials and inphysical properties of these materials.
      
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The inverse problems,with a bright future are in the forefront of both theoretical and applicational science researches within the international scope.Especially the studi- es in exploring the variations of physical parameters in closing objects by using acous- tic wave or seismic wave methods are paid great attention to,because of its relation with many domains such as mathematics,mechanics,physics and computer science and its wide applications in geological exploration,engineering and medicine.This sort of...

The inverse problems,with a bright future are in the forefront of both theoretical and applicational science researches within the international scope.Especially the studi- es in exploring the variations of physical parameters in closing objects by using acous- tic wave or seismic wave methods are paid great attention to,because of its relation with many domains such as mathematics,mechanics,physics and computer science and its wide applications in geological exploration,engineering and medicine.This sort of problems can be included in the category of determining coefficients terms in a partial differential eqations in mathematics.The previous researches are based on the elastic media model.A model of coefficient inverse problems of wave equation in visco- elastic media is proposed in this paper,which describes characteristics of geological media more truly.The finite element method and the least-squares inversion process are used to solve the inverse question of plane viscoelastic wave equation in the frequ- ency domain.A numerical perturbational algorithm has also been employed for obtaining the gradient matrix quickly and accurately.Singular Values Decomposition(SVD)produ- ces significant improvements in computational precision.Based on above-mentioned studies,the authors have compiled the computational programs.Some numerical examples, showing the validity and practicality of the model and the numerical algorithm,are also given.

波动方程的系数反演是一种用于识别地下介质物理力学参数的重要方法。过去这方面的研究一般都建立在弹性模型的基础上,本文则提出了粘弹性反演模型,这种模型更能真实地反映波在地下传播的实际情形。在粘弹性反演模型的基础上,我们还提出了一整套行之有效的数值反演方法,并在频域中完成了反演计算。最后的数值计算结果是令人满意的,证明了本文的模型和方法的合理性。

A tectonophysical method for estimating seismic energy and efficiency from the data on tectonic features, geological media, physical environment and driving background is established on the basis of a simplified elliptical hypocenter model, which considers strong constraint from hypocentral surroundings and uniformization of sliding resistance, and the calculation of hypocentral parameters. The method is examined by means of calculations of data of 28 strong earthquakes with magnitudes greater than 6.0....

A tectonophysical method for estimating seismic energy and efficiency from the data on tectonic features, geological media, physical environment and driving background is established on the basis of a simplified elliptical hypocenter model, which considers strong constraint from hypocentral surroundings and uniformization of sliding resistance, and the calculation of hypocentral parameters. The method is examined by means of calculations of data of 28 strong earthquakes with magnitudes greater than 6.0. The results show that the seismic efficiencies, η, ranges from 0.008 to 0.050 and deviation of the estimated magnitudes from those determined previously by conventional seismological methods is within ±0.5 for 78.6% of the earthquakes examined.

根据强约束匀阻化椭圆形震源简化模型及震源参数计算原理,建立了一种由构造、介质、物理环境和驱动背景等条件估计地震能量和地震效率的构造物理方法,并针对我国28例6级以上地震进行了初步的验算。其结果表明:地震效率η为0.008~0.050;由本方法所得地震能量推算的震级,与各震例原定震级相比较,78.6%的震例震级偏差不超出±0.5级。

The molecular weight,potentiometric behaviors,complexation,reduction of humic and fulvic acids are discussed and the binding of metal cations with humic and fulvic acids as a polyelcctrolytes are ana lyzed. The strong complexation and reduction of metal ions with humics are believed to be of great importance to an understanding of the migration of radionuclides in geological media.

简要阐述了腐殖酸的分子量、金属离子与腐殖酸相互作用的性质、腐殖酸的电位滴定行为、腐殖酸的络合物的稳定常数以及腐殖酸的还原作用等基本化学性质,讨论了腐殖酸的络合作用和还原作用对地质介质中核素迁移的重要性。

 
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